Will subtitles be saved with my downloaded videos?

When subtitle tracks are available on NHK World, the extension will extract them and offer to download alongside the video as separate files.

What browsers will support this extension?

It is being developed for Chrome, Firefox, Edge, Brave, and Opera on Windows, macOS, and Linux.

How will downloads be assembled into a single file?

HLS stream segments will be assembled locally into a standard MP4 file without re-encoding, preserving the original quality of the program.

Will I need an NHK account to download?

No account will be needed for publicly available content. The extension is intended to work with what your browser can access.

How will I monitor download progress?

A real-time progress panel is planned, showing download speed, file size, and estimated completion time so you always know the status.

What will happen if a download is interrupted?

Automatic retry logic is expected to resume interrupted downloads without losing progress, so you won't have to start over.

Will I get notified when a download finishes?

Desktop notifications are planned to alert you when a program has finished downloading, so you can start watching right away.

Can I download NHK World news segments?

Yes, the extension will be able to download news segments, documentaries, and other video programs from the NHK World website.

Use NHK Downloader only for videos you own or have permission to save. Respect the platform and creators, and do not redistribute downloaded videos without the necessary rights.

Downloader Video Downloaders

NHK Downloader

Name: NHK Downloader
Brand: SERP Apps
SKU: nhk-downloader
Availability: PreOrder
Rating: 4.9 (3 reviews)

Save NHK World documentaries and cultural programs as MP4 files before they rotate off the streaming library.

Join Waitlist

Browser extension

Current-page workflow

Browser downloads

40,000+ SERP Apps users

NHK Downloader is an independent product not affiliated with or endorsed by NHK, Japan Broadcasting Corporation or any subsidiaries or affiliates. All trademarks are property of their respective owners and use of them does not imply affiliation or endorsement.

Try it free — 3 downloads, no credit card

Your downloads never touch our servers

No ads, no tracking, no analytics

One-time payment, lifetime updates

Works on Windows, Mac, and Linux

Email support, answered by the people who built it

About NHK Downloader

NHK World offers a rich selection of documentaries and cultural programs, but many rotate off the streaming library after a limited time. With NHK Downloader, you can save these programs directly to your device as standard MP4 files. This ensures you have permanent access to content that might otherwise become unavailable.

The extension detects adaptive bitrate streams and lists all available quality tiers, so you can choose the resolution that fits your storage needs. It also extracts subtitle tracks in available languages, giving you a complete viewing experience offline.

Once downloaded, your programs are assembled locally without re-encoding, preserving original quality. Desktop notifications alert you when the process is complete, so you can build your archive effortlessly.

Trusted at scale

Trusted by 40k+ SERP Apps users.

Private & local

Private downloads. No ads or tracking.

One connected library

Part of the SERP Apps Extensions Library.

How It Works

Download in 3 clear steps

Open the page, let the extension detect what is available, and save the file to your computer.

Open an NHK World video page

Navigate to any program, documentary, or news segment on the NHK World website and let the video player load.

Click the extension icon

The extension detects the adaptive stream and displays available quality tiers with estimated file sizes and subtitle options.

Choose quality and subtitle preferences

Select your preferred resolution and optionally include available subtitle tracks for download alongside the video.

Happy Users

Recent customer feedback

Short, practical feedback from people using NHK Downloader in real workflows.

Invaluable for Japanese learners

I study Japanese and NHK World is the best free resource for natural listening practice. Programs used to disappear before I could finish them. Now I download episodes and study at my own pace with subtitles.

Kenji Tanaka

2025-01-18

Finally proper documentary archiving

NHK produces incredible documentaries about Japanese culture and craftsmanship. I have been archiving my favorites for years using screen capture but this is so much cleaner. Proper MP4 files with no quality loss.

Sarah Lindqvist

2025-02-24

Good for unreliable connections

Internet in my area is unreliable for streaming. I download NHK World news programs in the morning when the connection is stable and watch them later. The subtitle download feature is a great bonus.

David Nwosu

2025-03-10

These comments and ratings were collected during our July 2026 customer survey and reviewed against support records before publication.

Features

Everything it does

Core capabilities included in NHK Downloader.

Download NHK World video programs, documentaries, and news segments as MP4 files.

Detect adaptive bitrate streams and list all available quality tiers for your selection.

Extract subtitle tracks in available languages alongside the video download.

Assemble HLS stream segments into a single MP4 file locally, without re-encoding.

Monitor progress in a real-time panel showing speed, file size, and estimated completion.

Automatic retry logic resumes interrupted downloads without losing progress.

Operate with both public content and logged-in NHK accounts for session awareness.

Get desktop notifications when a program finishes downloading.

Supports Chrome, Firefox, Edge, Brave, and Opera on Windows, macOS, and Linux.

Open an NHK World video page and let the player load the program.

Click the extension icon to see quality tiers with file sizes and subtitle options.

Choose your resolution and optionally include subtitle tracks for download.

Compare

NHK Downloader Extension vs Online Downloader Website

Save NHK World videos as organized MP4 files right from the browser—no need to revisit a separate site for your download.

With NHK Downloader